Egads, OS/2? I suspect very few people on these forums know what that is
That keyboard should work fine across multiple devices in that case.
Feel free to ask any questions under the "enTourage Help" subforum about Android and using your eDGe. Many times it's a quick answer and you're all set.
For word processing and spreadsheets, you'll find "Documents To Go" under the Applications installed on your eDGe. It's designed to be compatible with Microsoft Word, Excel and Powerpoint. Look
here for detailed information about its capabilities. The
User Manual is in PDF format, which you can read on your eDGe
For any other apps you need, like billing, you can post a question in the "Android Apps" subforum and others can recommend what they use. A good place to look for apps is
SlideMe.org, which is even easier if you install the
SlideMe App Market application on your eDGe.